A weak lensing analysis of the PLCK G100.2-30.4 cluster

Abstract

We present a mass estimate of the Planck-discovered cluster PLCK G100.2-30.4, derived from a weak lensing analysis of deep SUBARU griz images. We perform a careful selection of the background galaxies using the multi-band imaging data, and undertake the weak lensing analysis on the deep (1hr) r-band image. The shape measurement is based on the KSB algorithm; we adopt the PSFex software to model the Point Spread Function (PSF) across the field and correct for this in the shape measurement. The weak lensing analysis is validated through extensive image simulations. We compare the resulting weak lensing mass profile and total mass estimate to those obtained from our re-analysis of XMM-Newton observations, derived under the hypothesis of hydrostatic equilibrium. The total integrated mass profiles are in remarkably good agreement, agreeing within 1$\sigma$ across their common radial range. A mass $M_{500}\sim 7\times 10^{14}{M}_{\odot }$ is derived for the cluster from our weak lensing analysis. Comparing this value to that obtained from our reanalysis of XMM-Newton data, we obtain a bias factor of (1-b) = 0.8 $\pm$ 0.1. This is compatible within 1$\sigma$ with the value of (1-b) obtained by Planck Collaboration XXIV from their calibration of the bias factor using newly-available weak lensing reconstructed masses.

11 pages, 12 figures, accepted for publication on Astronomy & Astrophysics; updates in affiliations

References in corpus (14)

• COSMOS Photometric Redshifts with 30-bands for 2-deg2
• Subaru Deep Survey V. A Census of Lyman Break Galaxies at z=4 and 5 in the Subaru Deep Fields: Photometric Properties
• The Canadian Cluster Comparison Project: detailed study of systematics and updated weak lensing masses
• SDSS Standard Star Catalog for Stripe 82: the Dawn of Industrial 1% Optical Photometry
• CLASH: Weak-Lensing Shear-and-Magnification Analysis of 20 Galaxy Clusters
• The Zurich Extragalactic Bayesian Redshift Analyzer (ZEBRA) and its first application: COSMOS
• Radial temperature profiles for a large sample of galaxy clusters observed with XMM-Newton
• Evidence for Non-Hydrostatic Gas from the Cluster X-ray to Lensing Mass Ratio
• Image Analysis for Cosmology: Results from the GREAT10 Galaxy Challenge
• LoCuSS: A Comparison of Cluster Mass Measurements from XMM-Newton and Subaru - Testing Deviation from Hydrostatic Equilibrium and Non-Thermal Pressure Support
• The MUSIC of CLASH: predictions on the concentration-mass relation
• Shock heating of the merging galaxy cluster A521
• Temperature structure of the intergalactic medium within seven nearby and bright clusters of galaxies observed with XMM-Newton
• A weak lensing analysis of the Abell 2163 cluster

Cited by in corpus (2)

• Tracing the Assembly History of NGC 1395 through its Globular Cluster System
• Line-of-sight Elongation and Hydrostatic Mass Bias of the Frontier Fields Galaxy Cluster Abell 370